tg-annihilate.sh

   1 #!/bin/sh
   2 # TopGit - A different patch queue manager
   3 # (c) Petr Baudis <pasky@suse.cz>  2008
   4 # (c) Per Cederqvist <ceder@lysator.liu.se>  2010
   5 # GPLv2
   6
   7 force= # Whether to annihilate non-empty branch, or branch where only the base is left.
   8
   9
  10 ## Parse options
  11
  12 while [ -n "$1" ]; do
  13         arg="$1"; shift
  14         case "$arg" in
  15         -f|--force)
  16                 force=1;;
  17         *)
  18                 echo "Usage: ${tgname:-tg} [...] annihilate [-f]" >&2
  19                 exit 1;;
  20         esac
  21 done
  22
  23
  24 ## Sanity checks
  25
  26 name="$(verify_topgit_branch HEAD)"
  27
  28 [ -z "$force" ] && { branch_empty "$name" || die "branch is non-empty: $name"; }
  29
  30 ## Annihilate
  31 ensure_ident_available
  32 mb="$(git merge-base "refs/$topbases/$name" "refs/heads/$name")"
  33 git read-tree "$mb^{tree}"
  34 # Need to pass --no-verify in order to inhibit TopGit's pre-commit hook to run,
  35 # which would bark upon missing .top* files.
  36 git commit --no-verify -m"TopGit branch $name annihilated."
  37
  38 # Propagate the dependencies through to dependents (if any), if they don't already have them
  39 dependencies="$(tg prev -w)"
  40 updatelist=
  41 while read dependent && [ -n "$dependent" ]; do
  42         git checkout -f "refs/heads/$dependent"
  43         needupdate=
  44         while read dependency && [ -n "$dependency" ]; do
  45                 ! $tg depend add --no-update "$dependency" >/dev/null 2>&1 || needupdate=1
  46         done <<-EOT
  47         $dependencies
  48         EOT
  49         [ -z "$needupdate" ] || updatelist="${updatelist:+$updatelist }$dependent"
  50 done <<EOT
  51 $($tg next)
  52 EOT
  53
  54 info "branch successfully annihilated: $name"
  55 if [ -n "$updatelist" ]; then
  56         info "now updating affected branches: $updatelist"
  57         while read dependent && [ -n "$dependent" ]; do
  58                 $tg update "$dependent"
  59         done <<-EOT
  60         $(sed 'y/ /\n/' <<-LIST
  61         $updatelist
  62         LIST
  63         )
  64         EOT
  65 fi
  66
  67 info "If you have shared your work, you might want to run ${tgname:-tg} push $name now."
  68 git status
  69
  70 # vim:noet